Dual Power Trim System: Important Information; Testing Dual Power Trim System; Relay Test - Mercury BRAVO Service Manual

DUAL POWER TRIM SYSTEM
Important Information
When testing this Dual Power Trim system, take special note of the following:
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•
The following tests are listed in order of probable component failure. It is recommended,
however, that all tests be performed even if a faulty component is detected early in the
sequence. This precaution will guard against repeat failure if there is more than one failed
component.

Testing Dual Power Trim System

Relay Test

TESTING RELAY NO. 1
1. Test for 12 volts at terminal 2, using only terminal 4 as a ground.
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•
2. Connect a jumper wire between terminals 3 and 5. Test for 12 volts at terminal 2, using
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Page 5C-2
The control box harness connectors must be disconnected and the key switch must
be OFF.
Make certain that the jumper lead used between terminals 3 and 5 is used only when
specified.
a
Dual Trim Control Panel Electrical Box
a - Relay No. 1
b - Relay No. 2
c - Diode Module
d - Terminal Block
e - Control Panel
Voltage indicated, proceed to "2."
No voltage indicated, replace relay.
only terminal 4 as a ground.
No voltage indicated, relay OK.
Voltage indicated, replace the relay.
e
c
b
d
SERVICE MANUAL NUMBER 28
22129
90-863160 MAY 2000